1880000640

素因数分解:

$2^7\times 3^2\times 5^1\times 7^2\times {\mathrm{6661}}^1$

素因数の和:6700

約数の個数: 288

約数和(自身を含む): 7552909260

約数和(自身を除く): 5672908620

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 98, 105, 112, 120, 126, 128, 140, 144, 147, 160, 168, 180, 192, 196, 210, 224, 240, 245, 252, 280, 288, 294, 315, 320, 336, 360, 384, 392, 420, 441, 448, 480, 490, 504, 560, 576, 588, 630, 640, 672, 720, 735, 784, 840, 882, 896, 960, 980, 1008, 1120, 1152, 1176, 1260, 1344, 1440, 1470, 1568, 1680, 1764, 1920, 1960, 2016, 2205, 2240, 2352, 2520, 2688, 2880, 2940, 3136, 3360, 3528, 3920, 4032, 4410, 4480, 4704, 5040, 5760, 5880, 6272, 6661, 6720, 7056, 7840, 8064, 8820, 9408, 10080, 11760, 13322, 13440, 14112, 15680, 17640, 18816, 19983, 20160, 23520, 26644, 28224, 31360, 33305, 35280, 39966, 40320, 46627, 47040, 53288, 56448, 59949, 66610, 70560, 79932, 93254, 94080, 99915, 106576, 119898, 133220, 139881, 141120, 159864, 186508, 199830, 213152, 233135, 239796, 266440, 279762, 282240, 299745, 319728, 326389, 373016, 399660, 419643, 426304, 466270, 479592, 532880, 559524, 599490, 639456, 652778, 699405, 746032, 799320, 839286, 852608, 932540, 959184, 979167, 1065760, 1119048, 1198980, 1278912, 1305556, 1398810, 1492064, 1598640, 1631945, 1678572, 1865080, 1918368, 1958334, 2098215, 2131520, 2238096, 2397960, 2557824, 2611112, 2797620, 2937501, 2984128, 3197280, 3263890, 3357144, 3730160, 3836736, 3916668, 4196430, 4263040, 4476192, 4795920, 4895835, 5222224, 5595240, 5875002, 5968256, 6394560, 6527780, 6714288, 7460320, 7673472, 7833336, 8392860, 8952384, 9591840, 9791670, 10444448, 11190480, 11750004, 12789120, 13055560, 13428576, 14687505, 14920640, 15666672, 16785720, 17904768, 19183680, 19583340, 20888896, 22380960, 23500008, 26111120, 26857152, 29375010, 29841280, 31333344, 33571440, 38367360, 39166680, 41777792, 44761920, 47000016, 52222240, 53714304, 58750020, 62666688, 67142880, 78333360, 89523840, 94000032, 104444480, 117500040, 125333376, 134285760, 156666720, 188000064, 208888960, 235000080, 268571520, 313333440, 376000128, 470000160, 626666880, 940000320, 1880000640]

約数ペア:

[(1, 1880000640), (2, 940000320), (3, 626666880), (4, 470000160), (5, 376000128), (6, 313333440), (7, 268571520), (8, 235000080), (9, 208888960), (10, 188000064), (12, 156666720), (14, 134285760), (15, 125333376), (16, 117500040), (18, 104444480), (20, 94000032), (21, 89523840), (24, 78333360), (28, 67142880), (30, 62666688), (32, 58750020), (35, 53714304), (36, 52222240), (40, 47000016), (42, 44761920), (45, 41777792), (48, 39166680), (49, 38367360), (56, 33571440), (60, 31333344), (63, 29841280), (64, 29375010), (70, 26857152), (72, 26111120), (80, 23500008), (84, 22380960), (90, 20888896), (96, 19583340), (98, 19183680), (105, 17904768), (112, 16785720), (120, 15666672), (126, 14920640), (128, 14687505), (140, 13428576), (144, 13055560), (147, 12789120), (160, 11750004), (168, 11190480), (180, 10444448), (192, 9791670), (196, 9591840), (210, 8952384), (224, 8392860), (240, 7833336), (245, 7673472), (252, 7460320), (280, 6714288), (288, 6527780), (294, 6394560), (315, 5968256), (320, 5875002), (336, 5595240), (360, 5222224), (384, 4895835), (392, 4795920), (420, 4476192), (441, 4263040), (448, 4196430), (480, 3916668), (490, 3836736), (504, 3730160), (560, 3357144), (576, 3263890), (588, 3197280), (630, 2984128), (640, 2937501), (672, 2797620), (720, 2611112), (735, 2557824), (784, 2397960), (840, 2238096), (882, 2131520), (896, 2098215), (960, 1958334), (980, 1918368), (1008, 1865080), (1120, 1678572), (1152, 1631945), (1176, 1598640), (1260, 1492064), (1344, 1398810), (1440, 1305556), (1470, 1278912), (1568, 1198980), (1680, 1119048), (1764, 1065760), (1920, 979167), (1960, 959184), (2016, 932540), (2205, 852608), (2240, 839286), (2352, 799320), (2520, 746032), (2688, 699405), (2880, 652778), (2940, 639456), (3136, 599490), (3360, 559524), (3528, 532880), (3920, 479592), (4032, 466270), (4410, 426304), (4480, 419643), (4704, 399660), (5040, 373016), (5760, 326389), (5880, 319728), (6272, 299745), (6661, 282240), (6720, 279762), (7056, 266440), (7840, 239796), (8064, 233135), (8820, 213152), (9408, 199830), (10080, 186508), (11760, 159864), (13322, 141120), (13440, 139881), (14112, 133220), (15680, 119898), (17640, 106576), (18816, 99915), (19983, 94080), (20160, 93254), (23520, 79932), (26644, 70560), (28224, 66610), (31360, 59949), (33305, 56448), (35280, 53288), (39966, 47040), (40320, 46627)]